Extech Instruments AN100 Manual

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AN100-en-GB_V3.5 6/15

AirFlowMeasurements(CMM/CFM)

1. TurnonthemeterusingtheON/OFFbutton

2. PresstheUNITSbuttontoselectthedesiredairflowunits:CMM

(cubicmetersperminute)orCFM(cubicfeetperminute).

NOTE:Atpowerupthemeterwilldisplaythelastunitof

measurepreviouslyentered.

3. Tobeginentering

theareainm

orft

,pressandholdtheAREA

buttonuntilitbeepstwice.Theleftmostdigitofthebottom

displaywillbegintoflash.

4. Usethe▲(UP)buttontochangetheflashingdigit

Usethe◄(LEFT)buttontomovethedecimal

Use►(RIGHT)buttontoselecttheotherdigits.



Afterallofthedigitsareentered,pressandholdtheAREAbutton(untilmeterbeepstwice)

tosavetheareaintomemoryandreturntoCFMorCMMmeasuringmode.

5. Placethesensorintheairstream.Ensurethattheairentersthevaneasindicatedbythe

arrowstickerplacedinsidethevane.Refertothediagram.ThelargemainLCDdisplay

showstheAirVelocityreading.TheupperrightLCDsub‐displayshowsthetemperature

reading.

Themeterhas16memorylocations(8forCFMand8forCMM)thatcanbeusedtostore

commonlyused

areasizesthatyoucanrecallatanytime.

1. PresstheAREAbuttonuntilmeterbeepstwice.Amemorylocationnumberwillappearin

thetoprightofthedisplayindicatingthememorylocation.

2. PushtheNEXTbuttontoscrollthruandselectthedesiredlocation.Onceyouhave

selected

thedesiredmemorylocationenteryourdimension

Usethe▲(UP)buttontochangetheflashingdigit

Usethe◄(LEFT)buttontomovethedecimal

Use►(RIGHT)buttontoselecttheotherdigits.Afterallofthedigitsareentered,press

andholdtheAREAbutton(untilit

beepstwice)tosavetheareaintomemoryandreturnto

CFMorCMMmeasuringmode.

Toselectanduseapreviouslystoreddimension,pressandholdtheAREAbuttonuntilitbeeps

twice.

PressNEXTtoscrollthruthe8memorylocations.PressandholdtheAREAbuttonuntil

itbeeps

twicetoreturntoCFMorCMMmeasuringmode.



airflow

Arrow

Side view of Vane